Version 2.2 schematic for the MS-7392 mainboard, delivered as a PDF of about 1.2 MB. MSI applies this MS-7xxx numbering to its desktop motherboards, and no chipset or date is given in the name. Open it in any PDF reader to follow voltage rails from the ATX connector, check the power-on sequence, and find parts behind a short or failed regulator. A 2.1 version is indexed separately, so make sure the PCB is printed with 2.2, as small component changes between versions are common.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @pepeelectronica. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.